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Endress+Hauser Deltabar FMD71 Technical Information

Endress+Hauser Deltabar FMD71 Technical Information

Level measurement with electronic differential pressure
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TI01033P/00/EN/05.15
71281272
Electronic differential pressure transmitter with ceramic and metal sensors
Application
The Deltabar FMD71/FMD72 is used to measure the
differential pressure or level, volume or mass of liquids in
pressurized or vacuum vessels
Your benefits
The electronic differential pressure system eliminates
traditional mechanical issues resulting in greater process
availability and reliability
• Safety risks are minimized with the electronic differential
pressure system architecture and design
• Lowest total cost of ownership due to reduced installation
time, maintenance, downtime and spare requirements,
downtime and spare requirements.
Products
Technical Information
Deltabar FMD71, FMD72
Level measurement with electronic differential pressure
Solutions
• Multivariable level measurement: HART-based differential
pressure, head pressure and sensor temperatures from one
system
• Continuous health indication of the entire system via HART-
based diagnostic
• High reproducibility and long-term stability
• Overload-resistant and function-monitored
Services

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Summary of Contents for Endress+Hauser Deltabar FMD71

  • Page 1 Application • Multivariable level measurement: HART-based differential pressure, head pressure and sensor temperatures from one The Deltabar FMD71/FMD72 is used to measure the system differential pressure or level, volume or mass of liquids in • Continuous health indication of the entire system via HART-...

  • Page 2: Table Of Contents

    Deltabar FMD71, FMD72 Table of contents Document information ..... . . 4 Performance characteristics of metallic process Document function ......
  • Page 3 Deltabar FMD71, FMD72 FMD71 process connections, flush-mounted process isolating diaphragm ......38 FMD71 process connections, flush-mounted process isolating diaphragm .

  • Page 4: Document Information

    Deltabar FMD71, FMD72 Document information Document function The document contains all the technical data on the device and provides an overview of the accessories and other products that can be ordered for the device. Symbols used Safety symbols Symbol Meaning DANGER! This symbol alerts you to a dangerous situation.

  • Page 5: Documentation

    Sections Documentation The document types listed are available: In the Download area of the Endress+Hauser website: www.endress.com → Download Brief Operating Instructions (KA): getting the 1st measured value quickly KA01105P: The Brief Operating Instructions contain all the essential information from incoming acceptance to initial commissioning.

  • Page 6: Terms And Abbreviations

    Deltabar FMD71, FMD72 Device Directive Documentation Option FMD72 FM C/US IS Cl.I Div.1 Gr.A-D, AEx ia, Zone 0,1,2 XA00624P FMD72 FM C/US XP AIS Cl.I Div.1 Gr.A-D, Exd [ia] Zone 0,1,2 XA00625P FMD72 FM C/US NI Cl.I Div.2 Gr.A-D, Zone 2 XA00669P Product Configurator order code for "Approval"...

  • Page 7: Function And System Design

    Deltabar FMD71, FMD72 Function and system design Measuring principle - ® Devices with ceramic process isolating diaphragm (Ceraphire electronic differential The ceramic sensor is an oil-free sensor, i.e. the process pressure acts directly on the robust ceramic pressure measurement process isolating diaphragm and causes it to deflect. A pressure-dependent change in capacitance is measured at the electrodes of the ceramic substrate and the process isolating diaphragm.

  • Page 8: Device Features

    Deltabar FMD71, FMD72 Device features FMD71 FMD72 Field of • Level application • Differential pressure Process • Thread • Thread connections • EN and ASME flanges • EN and ASME flanges • Flush-mounted hygienic connections • Flush-mounted hygienic connections Measuring ranges from from –400 to +400 mbar (–6 to +6 psi)

  • Page 9: System Integration

    Deltabar FMD71, FMD72 P = p2 P = p1 + p2 A0016449 Sensor module LP (low pressure) HP Sensor module HP (high pressure) Head pressure Hydrostatic pressure Transmitter The FMD71/FMD72 is best suited to level measurement in vessels with pressure overlay or in vacuum vessels and tanks, high distillation columns and other vessels with changing ambient temperatures.

  • Page 10: Input

    Deltabar FMD71, FMD72 Input Measured variable Measured process variables • Pressure HP and Pressure LP • Sensor temperature HP and sensor temperature LP • Transmitter temperature Calculated process variables • Differential pressure • Level (level, volume or mass) The maximum span of the differential pressure corresponds to the URL of the HP sensor.

  • Page 11: Fmd72: Measuring Range Of Individual Sensors

    Deltabar FMD71, FMD72 FMD72: measuring range of The maximum span of the differential pressure corresponds to the URL of the HP sensor. individual sensors Gauge pressure Nominal value Range limit Vacuum resistance Option lower (LRL) upper (URL) Silicone oil [bar (psi)]...

  • Page 12: Output

    Deltabar FMD71, FMD72 Output Output signal 4 to 20 mA with superimposed digital communication protocol HART 6.0, 2-wire Operation Internal + LCD External + LCD Internal Display Display HART HART FIELD COMMUNICATION PROTOCOL FIELD COMMUNICATION PROTOCOL Sensor Sensor – –...

  • Page 13: Dead Time, Time Constant

    • Acyclic: max. 3/s, typically 1/s (depending on command # and number of preambles) • Cyclic (burst): max. 3/s, typically 2/s The Deltabar FMD71/FMD72 offers BURST MODE functionality for cyclical value transmission via the HART communication protocol. Cycle time (update time) Cyclic (burst): min.

  • Page 14: Protocol-Specific Data

    Deltabar FMD71, FMD72 Protocol-specific data Manufacturer ID 17 (0x11) Device type code 39 (0x27) HART specification Device description files (DTM, DD) Information and files under: • www.endress.com • www.hartcomm.org HART device variables Measured values for PV (primary variable) • Differential pressure •...

  • Page 15: Power Supply

    Deltabar FMD71, FMD72 Power supply WARNING Electrical safety is compromised by an incorrect connection! ‣ In accordance with IEC/EN61010 a separate circuit breaker must be provided for the device . ‣ When using the measuring device in a hazardous area, installation must also comply with the relevant national standards and regulations as well as the safety instructions or installation or control drawings.

  • Page 16: Cable Entries

    • Ex nA • FM approval • CSA approval Cable specification for • Endress+Hauser recommends using twisted, shielded two-wire cables. • Terminals for core cross-sections 0.5 to 2.5 mm (20 to 14 AWG) transmitter connection • The cable outer diameter depends on the cable entry used.

  • Page 17: Performance Characteristics Of Ceramic Process Isolating Diaphragm

    Deltabar FMD71, FMD72 Performance characteristics of ceramic process isolating diaphragm Reference operating • As per IEC 60770 • Ambient temperature T = constant, in the range of +21 to +33 °C (+70 to +91 °F) conditions • Humidityj= constant, in the range of 5 to 80 % rH •...

  • Page 18: Reference Accuracy

    Deltabar FMD71, FMD72 Reference accuracy The reference accuracy contains the non-linearity [DIN EN 61298-2 3.11] including the pressure hysteresis [DIN EN 61298-23.13] and non-repeatability [DIN EN 61298-2 3.11] in accordance with the limit point method as per [DIN EN 60770].

  • Page 19: Total Performance

    Deltabar FMD71, FMD72 High temperature version and hygienic version Measuring cell Sensor –10 to +60 °C +60 to +150 °C Calculated thermal change (T Diff (+14 to +140 °F) (140 to +302 °F) of the differential pressure % of the set span for every sensor 100 mbar (1.5 psi)

  • Page 20: Total Error

    Deltabar FMD71, FMD72 Measuring ranges Sensor Standard version Calculated long-term stability (L Diff of the differential pressure 1 year 10 years % of URL for every sensor 1 bar (15 psi) Gauge pressure L = ±0.05 L = ±0.2 Diff 2 bar (30 psi) L = ±0.1...

  • Page 21: Performance Characteristics Of Metallic Process Isolating Diaphragm

    Deltabar FMD71, FMD72 Performance characteristics of metallic process isolating diaphragm Reference operating • As per IEC 60770 • Ambient temperature T = constant, in the range of +21 to +33 °C (+70 to +91 °F) conditions • Humidityj= constant, in the range of 5 to 80 % rH •...

  • Page 22: Reference Accuracy

    Deltabar FMD71, FMD72 Reference accuracy The reference accuracy contains the non-linearity [DIN EN 61298-2 3.11] including the pressure hysteresis [DIN EN 61298-23.13] and non-repeatability [DIN EN 61298-2 3.11] in accordance with the limit point method as per [DIN EN 60770].

  • Page 23: Total Performance

    Deltabar FMD71, FMD72 Total performance The "Total performance" specification comprises the non-linearity including hysteresis, non- reproducibility as well as the thermal change of the zero point. All specifications apply to the temperature range –10 to +60 °C (+14 to +140 °F).

  • Page 24: Installation

    Deltabar FMD71, FMD72 Installation • No moisture may enter the housing when installing or operating the device, or when establishing the electrical connection. • When measuring in media containing solids, such as dirty liquids, installing separators and drain valves is useful for capturing and removing sediment.

  • Page 25: Installing The Sensor Modules

    Deltabar FMD71, FMD72 Installing the sensor General installation instructions modules • Due to the orientation of the sensor modules, there may be a shift in the zero point, i.e. when the vessel is empty or partially full, the measured value does not display zero.

  • Page 26: Sensor And Transmitter Cable

    Deltabar FMD71, FMD72 Sensor and transmitter cable Description Length Option Sensor cable PE-X 1.82 m (6 ft) 4.57 m (15 ft) 10.67 m (35 ft) 30.48 m (100 ft) 45.72 m (150 ft) Transmitter cable PE-X 1.82 m (6 ft) 4.57 m (15 ft)

  • Page 27: Environment

    Deltabar FMD71, FMD72 Environment Ambient temperature range • Without local display: –40 to +80 °C (–40 to +176 °F) • WIth local display: –20 to +70 °C (–4 to +158 °F) Extended temperature operation range with limitations in optical properties, such as display speed and contrast.

  • Page 28: Process

    Deltabar FMD71, FMD72 Process Process temperature range • Thread and flanges: –25 to +125 °C (–13 to +257 °F) for devices with ceramic • Hygienic connections:–25 to +130 °C (–13 to +266 °F) , 150 °C (302 °F) for max. 60 minutes •...

  • Page 29: Process Temperature Range For Devices With Metallic Process Isolating Diaphragm Fmd72

    Deltabar FMD71, FMD72 Process temperature range Device Limits for devices with metallic Process connections with internal process isolating diaphragm –40 to +125 °C (–40 to +257 °F) process isolating diaphragm FMD72 Process connections with flush-mounted process isolating diaphragm –40 to +100 °C (–40 to +212 °F) (flanges, G 1 A, G 1½, G 2, MNPT)

  • Page 30: Mechanical Construction

    Deltabar FMD71, FMD72 Mechanical construction Device height The device height is calculated from • the height of the housing and • the height of the individual process connection. The individual heights of the components are listed in the following sections. To calculate the device height simply add up the individual heights of the components.

  • Page 31: T14 Transmitter Housing (Optional Display On The Side)

    Deltabar FMD71, FMD72 T14 transmitter housing 152 (5.98) (optional display on the side) 111 (4.37) 111 (4.37) A0016478 Engineering unit mm (in) Material Degree of protection Cable entry Weight kg (lbs) Option With display Without display Aluminum IP66/68 NEMA 4x/6P •...

  • Page 32: Sensor Housing

    Deltabar FMD71, FMD72 Sensor housing 64.5 (2.54) 145 (5.71) A0016480 1 With M20 cable entry With NPT ½" thread Engineering unit mm (in) Material Degree of protection Cable entry Weight Option kg (lbs) Aluminum IP66/68 NEMA 4x/6P • M20 cable entry 0.6 (1.32)

  • Page 33: Fmd71 Process Connections, Internal Process Isolating Diaphragm

    Deltabar FMD71, FMD72 FMD71 process connections, Thread DIN 13 internal process isolating diaphragm ø8 (0.31) ø3 (0.12) ø6 (0.24) M20x1.5 A0020945 Engineering unit mm (in) Description Material Weight Option kg (lbs) DIN 13 M20 x 1.5, EN 837 AISI 316L 0.63 (1.39)

  • Page 34: Fmd71 Process Connections, Internal Process Isolating Diaphragm

    Deltabar FMD71, FMD72 FMD71 process connections, Thread ISO 228 G internal process isolating diaphragm ø8 (0.31) ø3 (0.12) G ¼" ø6 (0.24) ø17.5 (0.24) G ½" G ½" A0020935 A0020936 ø11.4 (0.45) ø17.5 (0.24) G ½" A0020937 Engineering unit mm (in)

  • Page 35: Fmd71 Process Connections, Internal Process Isolating Diaphragm

    Deltabar FMD71, FMD72 FMD71 process connections, Thread ANSI internal process isolating diaphragm ø11.4 (0.45) ø11.4 (0.45) NPT ¼" NPT ½" NPT ½" A0020939 A0020938 ø3 (0.12) NPT ½" ø26.5 (1.04) NPT ½" A0020940 A0020943 Engineering unit mm (in) Item Description...

  • Page 36: Fmd71 Process Connections, Flush-Mounted Process Isolating Diaphragm

    Deltabar FMD71, FMD72 FMD71 process connections, Thread ANSI flush-mounted process isolating diaphragm NPT 1½" NPT 2" ø68 (2.68) A0020948 A0020949 Engineering unit mm (in) Item Description Material Weight Option kg (lbs) ANSI 1 ½" MNPT AISI 316L (CRN) 0.63 (1.39) Alloy C276 (2.4819) (CRN)

  • Page 37: Fmd71 Process Connections, Flush-Mounted Process Isolating Diaphragm

    Deltabar FMD71, FMD72 FMD71 process connections, Thread DIN 13 flush-mounted process isolating diaphragm ø40.5 (1.59) M44x1.25 A0020950 Engineering unit mm (in) Description Material Weight Option kg (lbs) DIN 13 M44 x 1.25 AISI 316L 0.63 (1.39) Alloy C276 (2.4819) Product Configurator order code for "Process connection"...

  • Page 38: Fmd71 Process Connections, Flush-Mounted Process Isolating Diaphragm

    Deltabar FMD71, FMD72 FMD71 process connections, Thread ISO 228 G flush-mounted process isolating diaphragm G 1½" G 2" ø55 (2.17) ø68 (2.68) A0020946 A0020947 Engineering unit mm (in) Item Description Material Weight Option kg (lbs) Thread ISO 228 G 1 ½" A AISI 316L 0.63 (1.39)

  • Page 39: Fmd71 Process Connections, Flush-Mounted Process Isolating Diaphragm

    < 0.76 µm (30 µin) as standard. Surface quality R < 0.38 µm (15 µin) electropolished (wetted) available on request. Endress+Hauser supplies these slotted nuts in stainless steel AISI 304 (DIN/EN material number 1.4301) or in AISI 304L (DIN/EN material number 1.4307). Endress+Hauser...
  • Page 40 DIN11864-1 A DN50 PN40 pipe DIN11866-A, slotted nut, 316L, EHEDG, 3A 1 (2.21) Product Configurator order code for "Process connection" Endress+Hauser supplies these slotted nuts in stainless steel AISI 304 (DIN/EN material number 1.4301) or in AISI 304L (DIN/EN material number 1.4307). Endress+Hauser...
  • Page 41 Deltabar FMD71, FMD72 ø 100 (3.94) ø 105 (4.13) ø 82 (3.23) ø 84 (3.31) ø 61 (2.4) ø60 (2.36) ø 52 (2.05) ø 52 (2.05) ø 42 (1.65) ø 42 (1.65) ø 69 (2.72) ø 65 (2.56) A0026387 A0026388 ø...

  • Page 42: Fmd71 Process Connections, Flush-Mounted Process Isolating Diaphragm

    Deltabar FMD71, FMD72 FMD71 process connections, EN/DIN flanges, connection dimensions in accordance with EN 1092-1/DIN 2527 flush-mounted process isolating diaphragm A0026336 Engineering unit mm Flange Boltholes Weight Option Nominal diameter Nominal pressure Shape Material Thickness Raised face Number g Hole circle...

  • Page 43: Fmd71 Process Connections, Flush-Mounted Process Isolating Diaphragm

    Deltabar FMD71, FMD72 FMD71 process connections, ASME flanges, connection dimensions as per ASME B 16.5, raised face RF flush-mounted process isolating diaphragm 1.024 A0026337 Engineering unit in Flange Boltholes Weight Option NPS (nominal diameter of Class Material Thickness Raised face Number g...

  • Page 44: Isolating Diaphragm

    Deltabar FMD71, FMD72 FMD71 process connections, JIS flanges, connection dimensions as per JIS B 2220 BL, raised face RF flush-mounted process isolating diaphragm A0026336 Engineering unit mm 1) 2) Flange Boltholes Weight Option Nominal diameter Nominal pressure Thickness Raised face...

  • Page 45: Diaphragm

    Deltabar FMD71, FMD72 FMD72 process connections, Thread ISO 228 G internal process isolating diaphragm ø11.4 (0.45) ø3.2 (0.13) ø6 (0.24) G ¼" ø17.5 (0.69) ø17.5 (0.69) G ½ A " G ½ A " A0026392 A0026391 ø11.4 (0.45) ø17.5 (0.69) G ½...

  • Page 46: Diaphragm

    Deltabar FMD71, FMD72 FMD72 process connections, Thread ANSI internal process isolating diaphragm ø11.4 (0.45) ø21.4 (0.84) ø21.4 (0.84) NPT ¼" ø11.4 (0.45) NPT ½" NPT ½" A0026394 A0026395 NPT ½" ø38 (1.5) A0026396 Engineering unit mm (in) Item Description Material...

  • Page 47: Fmd72 Process Connections, Flush-Mounted Process Isolating Diaphragm

    Deltabar FMD71, FMD72 FMD72 process connections, flush-mounted process Thread ISO 228 G isolating diaphragm ø18.4 (0.72) ø17.5 (0.69) ø28 (1.1) G ½ A " ø30 (1.18) ø23.6 (0.93) G 1" A ø26.5 (1.04) ø36 (1.42) A0021613 ø39 (1.54) A0021614 ø26 (1.02) ø26 (1.02)

  • Page 48: Fmd72 Process Connections, Flush-Mounted Process Isolating Diaphragm

    Deltabar FMD71, FMD72 FMD72 process connections, Thread ANSI flush-mounted process isolating diaphragm ø26 (1.02) ø26 (1.02) NPT 1" NPT 1 " ½ A0026400 A0026402 ø26 (1.02) NPT 2" A0026403 Engineering unit mm (in) Item Description Material Weight Option kg (lbs) ANSI 1"...

  • Page 49: Fmd72 Process Connections, Flush-Mounted Process Isolating Diaphragm

    The sealing surface in these process connections is smaller than what is specified in the standard. Due to the smaller sealing surface, a special seal must be used. For further information, please contact a seal manufacturer or your local Endress+Hauser Sales Center.

  • Page 50: Fmd72 Process Connections, Flush-Mounted Process Isolating Diaphragm

    The sealing surface in these process connections is smaller than what is specified in the standard. Due to the smaller sealing surface, a special seal must be used. For further information, please contact a seal manufacturer or your local Endress+Hauser Sales Center.

  • Page 51: Isolating Diaphragm

    Deltabar FMD71, FMD72 FMD72 process connections, flush-mounted process Hygienic connections isolating diaphragm A0021801 A0021802 A0021803 A0021804 Engineering unit mm (in) Item Description Nominal Diaphragm Height Height Material Weight Option Seal  pressure kg (lbs) Clamp 34 (1.34) - 27.5 17.2 (0.68) max.
  • Page 52 Deltabar FMD71, FMD72 A0021806 A0021805 A0021807 A0021800 Engineering unit mm (in) Item Descripti Nominal External Diaphrag Height Height Material Weight Option pressure m kg (lbs) SMS 1" 35.5 (1.4) - 51 (2.01) 21.65 max. 40 20 (0.79) AISI 316L 0.7 (1.54) T6J (0.85)
  • Page 53 Deltabar FMD71, FMD72 2 (0.08) A0021809 A0021808 105 (4.13) A0021811 A0021810 Engineering unit mm (in) Item Descriptio Nominal Hole Diaphrag Height Material Weight Option pressure circle- m kg (lbs) Neumo 64 (2.52) 30.4 (1.2) 50 (1.97); 21.65 max. 40 AISI 316L 0.8 (1.76)

  • Page 54: Wall And Pipe Mounting With Mounting Bracket

    Deltabar FMD71, FMD72 Wall and pipe mounting with 84 (3.31) mounting bracket ø52 (2.05) ø40 (1.57) 140 (5.51) 122 (4.8) 175 (6.89) 122 (4.8) 158 (6.22) ø42...60 (1.65...2.36) A0016495 Engineering unit mm (in) Weight kg (lbs) Option Housing Mounting bracket →...

  • Page 55: Materials In Contact With Process

    • No additives or operating materials derived from animals are used in production or processing. Process connections • Endress+Hauser supplies DIN/EN flanges and threaded connection in stainless steel as per AISI 316L (DIN/ EN material number 1.4404 or 1.4435). With regard to their stability-temperature property, the materials 1.4404 and 1.4435 are grouped together under 13E0 in EN 1092-1: 2001...

  • Page 56: Materials Not In Contact With Process

    Deltabar FMD71, FMD72 Materials not in contact with T14 transmitter housing process A0016496 Item number Component part Material T14 housing, RAL 5012 (blue) Die-cast aluminum with protective powder-coating on polyester base T14 housing Precision cast AISI 316L (1.4435) Cover, RAL 7035 (gray) •...
  • Page 57 Deltabar FMD71, FMD72 T17 transmitter housing A0020021 Item number Component part Material T17 housing AISI 316L (1.4404) Cover Cover seal EPDM Nameplates Lasered on Pressure compensation filter AISI 316L (1.4404) and PBT-FR Pressure compensation filter, O-ring VMQ or EPDM Sight glass for non-hazardous area, ATEX Ex ia,...
  • Page 58 Deltabar FMD71, FMD72 Sensor modules A0021295 Item number Component part Material Sensor module housing and cover Aluminum with protective powder-coating on polyester base AISI 316L (1.4404) Pressure compensation filter PA6 GF10 or 316L (1.4404) Blind plug PBT-GF30 FR, for dust ignition-proof: AISI 316L (1.4435)

  • Page 59: Operability

    Deltabar FMD71, FMD72 Operability Operating concept Operator-oriented menu structure for user-specific tasks • Commissioning • Operation • Diagnosis • Expert level Fast and safe commissioning Guided menus for applications Reliable operation • Local operation possible in up to two languages •...
  • Page 60 Deltabar FMD71, FMD72 • Possibility of configuring the display in accordance with individual wishes and requirements e.g. language, alternating display, display of other measured values, such as sensor temperature, contrast setting • Comprehensive diagnostic functions (fault and warning message, peak-hold indicators, etc.).

  • Page 61: Operating Languages

    Deltabar FMD71, FMD72 Operating keys and elements located internally on the electronic insert 1 2 3 Display HART FIELD COMMUNICATION PROTOCOL Sensor A0016500 DIP switch for locking/unlocking parameters relevant to the measured value DIP switch for switching damping on/off DIP switch for alarm current SW/Alarm min (3.6 mA) 4...5 Not assigned...

  • Page 62: Certificates And Approvals

    Deltabar FMD71, FMD72 Certificates and approvals CE mark The device meets the legal requirements of the relevant EC directives. Endress+Hauser confirms that the device has been successfully tested by applying the CE mark. • ATEX Ex approvals • FM • CSA •...

  • Page 63: Crn Approval

    "Mechanical construction" section.) Classification of process Endress+Hauser devices are designed in accordance with ANSI/ISA 12.27.01. allowing the user to waive the use and save the cost of installing external secondary process seals in the conduit as sealing between electrical required by the process sealing sections of ANSI/NFPA 70 (NEC) and CSA 22.1 (CEC).
  • Page 64 Deltabar FMD71, FMD72 Description Option Helium leak test, internal procedure, inspection certificate Pressure test, internal procedure, inspection certificate Product Configurator order code for "Test, certificate" Endress+Hauser...

  • Page 65: Ordering Information

    Deltabar FMD71, FMD72 Ordering information Detailed ordering information is available from the following sources: • In the Product Configurator on the Endress+Hauser website: www.endress.com→ Select country→ Products→ Select product→ Product page function: Configure this product • From your Endress+Hauser Sales Center: www.endress.com/worldwide...

  • Page 66: Supplementary Documentation

    Deltabar FMD71, FMD72 Supplementary documentation Field of Activities Pressure measurement, powerful instruments for process pressure, differential pressure, level and flow: FA00004P/00/EN Technical Information EMC test procedures TI00241F/00/EN Operating Instructions BA01044P/00/EN KA01105P/00/EN - Brief Operating Instructions for devices Brief Operating Instructions...
  • Page 68 *71281272* 71281272...

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